DevTools: NetworkPanel: remove noop CSS.

BUG=316092
NOTRY=true

Review URL: https://codereview.chromium.org/464813002

git-svn-id: svn://svn.chromium.org/blink/trunk@180145 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/devtools/front_end/networkLogView.css

@@ -71,11 +71,6 @@
 .network-log-grid.data-grid th {
     border-bottom: 1px solid rgb(205, 205, 205);
     border-left: 1px solid rgb(205, 205, 205);
-}
-
-.network-log-grid.data-grid th,
-.network-log-grid.data-grid th.sort-descending,
-.network-log-grid.data-grid th.sort-ascending {
     background: white;
 }
 
@@ -576,25 +571,3 @@
 #network-container.brief-mode .network-timeline-grid {
     display: none;
 }
-
-#network-container.brief-mode td,
-#network-container.brief-mode th {
-    border-left: none;
-}
-
-#network-container.brief-mode .network-log-grid.data-grid .data-grid-resizer {
-    display: none;
-}
-
-#network-container.brief-mode .network-timeline-grid {
-    display: none;
-}
-
-#network-container:not(.brief-mode) .data-grid tr.selected {
-    background-color: transparent;
-    color: #222;
-}
-
-#network-container.brief-mode .data-grid .data-container {
-    padding-right: 0;
-}

third_party/WebKit/Source/devtools/front_end/networkPanel.css

@@ -51,11 +51,6 @@
     display: block;
 }
 
-.network.panel .data-grid th.sort-descending,
-.network.panel .data-grid th.sort-ascending {
-    background: white;
-}
-
 #network-views .network-item-view .tabbed-pane-header {
     flex: 0 0 31px;
     padding-top: 8px;

third_party/WebKit/Source/devtools/front_end/webSocketFrameView.css

@@ -28,11 +28,6 @@
     border-bottom: 1px solid #aaa;
 }
 
-.websocket-frame-view .top-filler-td,
-.websocket-frame-view .bottom-filler-td {
-    border-bottom: none;
-}
-
 .websocket-frame-view-row-outcoming {
     background-color: rgb(226, 247, 218);
 }